28112824 has 8 divisors (see below), whose sum is σ = 52711560. Its totient is φ = 14056408.

The previous prime is 28112813. The next prime is 28112827. The reversal of 28112824 is 42821182.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 28112792 and 28112801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1757044 + ... + 1757059.

It is an arithmetic number, because the mean of its divisors is an integer number (6588945).

Almost surely, 2^28112824 is an apocalyptic number.

It is an amenable number.

28112824 is a deficient number, since it is larger than the sum of its proper divisors (24598736).

28112824 is a wasteful number, since it uses less digits than its factorization.

28112824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514109 (or 3514105 counting only the distinct ones).

The product of its digits is 2048, while the sum is 28.

The square root of 28112824 is about 5302.1527703377. The cubic root of 28112824 is about 304.0662078788.

The spelling of 28112824 in words is "twenty-eight million, one hundred twelve thousand, eight hundred twenty-four".